 Shales (Hamilton, etc.) 18,295,000,000 288. Helderberg limestone 19,638,000,000 .... Trenton chazy limestone 24,653,000,000 From the mechanical analysis of the samples which were used to make up these type samples and perhaps of a large number of other...  Handbook of Experiment Station Work: A Popular Digest of the Publications of ... - Página 311por United States. Office of Experiment Stations - 1893 - 411 páginasVista completa - Acerca de este libro
 | United States. Office of Experiment Stations - 1893 - 1246 páginas
...limestone 24,653,000,000 From the mechanical analysis of the samples which were used to make up these type samples and perhaps of a large number of other...organic matter or by irrigation, on a soil having so few aa 1,700,000,000 grains per gram. Good market truck is grown on a soil having 6,800,000,000 grains.... | |
 | United States. Office of Experiment Stations - 1893 - 1142 páginas
...agricultural value, it should be possible to determine tho smallest and the largest number of grains per grain of soil where these different crops could be successfully...organic matter or by irrigation, on a soil having so few as 1,700,000,000 grains per gram. Good market truck is grown on a soil having 6,800,000,000 grains.... | |
 | United States. Office of Experiment Stations - 1893 - 1232 páginas
...limestone 24,653,000,000 From the mechanical analysis of the samples which were used to make up these type samples and perhaps of a large number of other soils of known agricultural valne, it should be possible to determine the smallest and the largest number of grains per gram of... | |
| |
